Fastening type barb four-claw nail
By designing a fastening barbed four-pronged nail, the friction and biting force are enhanced through the cooperation of the head, shaft, and barb body, solving the problem of loosening and falling off the four-pronged nail, and achieving higher reliability and service life.
Patent Information
- Application Number
- CN202520324209.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-02-27
AI Technical Summary
The existing four-pronged nails do not have barbs, which makes them prone to loosening or falling off under vibration or external pulling force, reducing their reliability.
A fastening barbed four-pronged nail was designed, including a head, a shaft, and a barb body. The barb body is provided on the outer wall of the shaft. The shaft is composed of an anti-corrosion layer, a silicone layer, a heat-conducting layer, and a reinforcing layer. Through the cooperation of the head, shaft, and barb body, the friction and biting force are increased, the firmness is improved, and the overall performance is enhanced by the material properties of different layers.
It effectively prevents the four-pronged screws from loosening and falling off, improves reliability, extends service life, and ensures structural integrity and reliable connection.
Smart Images

Figure CN223621964U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hardware accessories technology, and in particular to fastening barbed four-pronged nails. Background Technology
[0002] Four-pronged nails, also known as four-corner nails, four-legged nails, claw nails, or four-pronged nuts, are mainly divided into three parts: the head, the claws, and the rod. They are widely used in the furniture manufacturing industry, primarily for connecting components such as bed boards and sofa frames, making the furniture structure more stable.
[0003] Existing four-pronged nails are usually manufactured using cold forging, which can produce products with complex shapes, precise dimensions, and excellent mechanical properties. Compared with traditional processes, they have higher tensile strength. However, they do not have barbs, which makes them prone to loosening or even falling off under vibration, external pulling, etc., greatly reducing the reliability of four-pronged nails. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a fastening barbed four-pronged nail, which aims to improve the problem that the existing four-pronged nails do not have barbs, thus reducing the reliability of the four-pronged nails.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A fastening barbed four-pronged nail includes a head, a rod fixedly connected to the inner wall of the head, and a barbed body provided on the outer wall of the rod.
[0007] Preferably, the barb body includes a nail body, and a hook tip is fixedly connected to the outer wall of the nail body.
[0008] Preferably, the inner wall of the head has holes.
[0009] Preferably, the rod is composed of an anti-corrosion layer, a silicone layer, a thermally conductive layer, and a reinforcing layer.
[0010] Preferably, the anti-corrosion layer is made of stainless steel.
[0011] Preferably, the silicone layer is made of silicone rubber.
[0012] Preferably, the heat-conducting layer is made of pure copper.
[0013] Preferably, the reinforcing layer is made of high-manganese steel.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, by applying external force to move the head, the rod will move. Since the rod and the barb body are fixedly connected, the movement of the rod will cause the barb body to move synchronously. The nail will move with the movement of the barb body, further driving the hook tip to move. Through the cooperation between the head, rod, nail body and hook tip, the friction and biting force between the four-pronged nail and the material are increased, greatly improving the firmness between the four-pronged nail and the material. This effectively maintains the integrity of the structure and prevents the overall structure from failing due to loose connection. It provides reliable connection protection for various buildings, machinery and other structures, greatly improving the reliability of the four-pronged nail.
[0016] 2. In this utility model, the anti-corrosion layer can protect the four-pronged nail from rusting in harsh environments, the silicone layer can provide the four-pronged nail with a certain toughness to ensure that it will not deform when subjected to external force, the heat-conducting layer can ensure that the temperature of each part connected by the four-pronged nail is uniform, and the reinforcing layer can improve the overall strength of the four-pronged nail and prevent the four-pronged nail from breaking after long-term use. Through the cooperation between the anti-corrosion layer, silicone layer, heat-conducting layer and reinforcing layer, the service life of the four-pronged nail is extended. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the fastening barbed four-claw nail proposed in this utility model;
[0018] Figure 2 This is a partial structural diagram of the head of the fastening barbed four-pronged nail proposed in this utility model;
[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0020] Figure 4 This is a partial structural diagram of the hole in the fastening barbed four-pronged nail proposed in this utility model;
[0021] Figure 5 This is a cross-sectional view of the reinforcing layer of the fastening barbed four-claw nail proposed in this utility model.
[0022] Legend:
[0023] 1. Head; 2. Shaft; 3. Barb body; 301. Nail body; 302. Hook tip; 4. Hole; 5. Anti-corrosion layer; 6. Silicone layer; 7. Heat-conducting layer; 8. Reinforcing layer. Detailed Implementation
[0024] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0025] Reference Figures 1-3 An embodiment of this utility model is provided: a fastening barbed four-claw nail, including a head 1, a rod 2 fixedly connected to the inner wall of the head 1, and a barbed body 3 provided on the outer wall of the rod 2;
[0026] Specifically, the head 1 is located at one end of the rod 2 and is used to support and fix the rod 2. During installation, the head 1 can provide positioning and guidance for the rod 2, which can help the user accurately align the rod 2 with the position to be fixed, ensuring the accuracy of installation. The rod 2 is used to support and fix the barb body 3. Through the cooperation between the head 1, the rod 2 and the barb body 3, the biting force between the four-pronged nail and the material is increased, the four-pronged nail is prevented from falling off, and the reliability of the four-pronged nail is improved.
[0027] Reference Figure 1 , Figure 3 and Figure 4 The barb body 3 includes a nail body 301, and a hook tip 302 is fixedly connected to the outer wall of the nail body 301; a hole 4 is opened on the inner wall of the head 1.
[0028] Specifically, the nail body 301 is used to support the hook tip 302, and the hole 4 is used to release the force exerted on the four-pronged nail to prevent the four-pronged nail from cracking and affecting subsequent use.
[0029] Reference Figure 1 and Figure 5 The rod 2 is composed of an anti-corrosion layer 5, a silicone layer 6, a heat-conducting layer 7, and a reinforcing layer 8; the anti-corrosion layer 5 is made of stainless steel; the silicone layer 6 is made of silicone rubber; the heat-conducting layer 7 is made of pure copper; and the reinforcing layer 8 is made of high manganese steel.
[0030] Specifically, the anti-corrosion layer 5 protects the rod 2 from corrosion by the outside air, the silicone layer 6 provides the rod 2 with a certain degree of toughness, thereby preventing the four-jaw nail from deforming due to external forces, the heat-conducting layer 7 makes the temperature of the four-jaw nail and the surrounding area more even, reduces the risk of structural damage caused by temperature stress, and ensures the stability of the equipment structure, and the reinforcing layer 8 is used to improve the overall strength of the four-jaw nail. Through the cooperation between the anti-corrosion layer 5, the silicone layer 6, the heat-conducting layer 7 and the reinforcing layer 8, the overall strength and toughness of the four-jaw nail are improved, thereby extending the service life of the four-jaw nail.
[0031] Working principle: When using, a hole needs to be drilled at the installation location first. Then, the head 1 is aligned with the drilled hole and external force is applied. When the head 1 is moved by the external force, it will drive the rod 2 to move. Through the fixing action of the rod 2 and the barb body 3, the barb body 3 will be driven to move, which in turn will drive the hook tip 302 to move. Through the cooperation between the head 1, the rod 2, the barb body 3 and the hook tip 302, the friction between the four-pronged nail and the material is increased, ensuring that the four-pronged nail will not fall off and increasing the reliability of the four-pronged nail during use.
[0032] Since the anti-corrosion layer 5 is made of stainless steel, which has excellent chemical stability and corrosion resistance, it can prevent the four-pronged nail from being corroded by the outside air. The silicone layer 6 is made of silicone rubber, which has good toughness and resilience, thus buffering the external forces on the four-pronged nail and preventing cracks caused by external forces. The high manganese steel has excellent strength, which can improve the overall hardness of the four-pronged nail and ensure that it will not deform under long-term use. Through the cooperation between the anti-corrosion layer 5, silicone layer 6, thermal conductive layer 7 and reinforcing layer 8, the overall corrosion resistance and strength of the four-pronged nail are improved, preventing deformation or breakage of the four-pronged nail under long-term use and extending its service life.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A fastening type barbed four-pronged nail, including a head (1), characterized in that: The inner wall of the head (1) is fixedly connected to a rod (2), and the outer wall of the rod (2) is provided with a barb body (3).
2. The fastening barbed four-pronged nail according to claim 1, characterized in that: The barb body (3) includes a nail body (301), and a hook tip (302) is fixedly connected to the outer wall of the nail body (301).
3. The fastening type barbed four-pronged nail according to claim 1, characterized in that: The inner wall of the head (1) is provided with holes (4).
4. The fastening barbed four-pronged nail according to claim 1, characterized in that: The rod (2) is composed of an anti-corrosion layer (5), a silicone layer (6), a heat-conducting layer (7), and a reinforcing layer (8).
5. The fastening barbed four-pronged nail according to claim 4, characterized in that: The anti-corrosion layer (5) is made of stainless steel.
6. The fastening barbed four-pronged nail according to claim 4, characterized in that: The silicone layer (6) is made of silicone rubber.
7. The fastening barbed four-pronged nail according to claim 4, characterized in that: The heat-conducting layer (7) is made of pure copper.
8. The fastening type barbed four-pronged nail according to claim 4, characterized in that: The reinforcing layer (8) is made of high manganese steel.